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Is a form of electromagnetic energy that can be described in terms of wavelengths.

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Electromagnetic wave energy that can be described in terms of wavelength, namely photon energy.

Introduction

In electromagnetic waves, photons have the task of carrying energy from an electromagnetic wave. We know today, there are 7 types of electromagnetic waves. Based on the wavelength from the longest, to the shortest as follows:

  • Radio & television waves
  • Microwave
  • Infrared
  • Visible light
  • Ultraviolet light
  • X-ray
  • Gamma ray

To create a large photon energy, then an electromagnetic wave must have a short wavelength. This means, the relationship between photon energy and wavelength are mutually inverse.

Explanation

Regarding the photon energy itself, it can be formulated in two ways, namely as follows:

By Frequency

[tex] \boxed{\sf{\bold{E = h \times f}}} [/tex]

By the Wave Length

[tex] \boxed{\sf{\bold{E = h \times \frac{c}{\lambda}}}} [/tex]

With the following condition :

  • E = photon energy (J)
  • h = Planck's constant ≈ [tex] \sf{6.6 \times 10^{-34} \: J.s} [/tex]
  • c = the constant of the speed of light in a vacuum ≈ [tex] \sf{3 \times 10^{8} \: m/s} [/tex]
  • f = electromagnetic wave frequency (Hz)
  • [tex] \sf{\lambda} [/tex] = wavelength (m)

Conclusion

Electromagnetic wave energy that can be described in terms of wavelength, namely photon energy.

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